lkml.org 
[lkml]   [2015]   [Nov]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] writeback: initialize m_dirty to avoid compile warning
Hello,

On Wed, Nov 18, 2015 at 10:27:32AM -0800, Shi, Yang wrote:
> >This was the main reason the code was structured the way it is. If
> >cgroup writeback is not enabled, any derefs of mdtc variables should
> >trigger warnings. Ugh... I don't know. Compiler really should be
> >able to tell this much.
>
> Thanks for the explanation. It sounds like a compiler problem.
>
> If you think it is still good to cease the compile warning, maybe we could

If this is gonna be a problem with new gcc versions, I don't think we
have any other options. :(

> just assign it to an insane value as what Andrew suggested, maybe
> 0xdeadbeef.

I'd just keep it at zero. Whatever we do, the effect is gonna be
difficult to track down - it's not gonna blow up in an obvious way.
Can you please add a comment tho explaining that this is to work
around compiler deficiency?

Thanks.

--
tejun


\
 
 \ /
  Last update: 2015-11-18 20:01    [W:0.094 / U:2.764 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site